Tomography with LASCO-C2 Total Brightness Images

Details Tomography with LASCO-C2 Total Brightness Images Tomography with LASCO-C2 Total Brightness Images

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufmsh44a..08f&link_type=abstract

American Geophysical Union, Fall Meeting 2009, abstract #SH44A-08

Astronomy and Astrophysics

Astrophysics

[7509] Solar Physics, Astrophysics, And Astronomy / Corona, [7594] Solar Physics, Astrophysics, And Astronomy / Instruments And Techniques

Scientific paper

The recently completed calibration of the K-corona total brightness (B) images from the SOHO/LASCO archive offers the opportunity for 3D reconstruction of the corona's electron density from a vastly larger data set than is available from the polarized brightness (pB) images. Since the B has a different line-of-sight weighting than the pB, the two may be combined to provide more information than is available from either one (this fact has already been exploited to locate CME centers of mass), leading to better results. Here, we present the first tomography based on B images and compare the results to those based on pB images and the combination of pB and B images. Implications for time-dependent tomography and improved modeling the of F-corona are discussed.

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